Concept notes: The Andaman and Nicobar Islands are a group of islands in the Bay of Bengal, forming a union territory of India. The islands are known for their unique geographical features, including active volcanoes and the administrative capital, Port Blair. Barren Island, located in the Andaman Sea, is the only active volcano in India.
Explanation: The Andaman and Nicobar Islands are a union territory of India, located in the Bay of Bengal. They consist of a group of islands that are geographically and administratively distinct. The islands are known for their unique geological features, including the presence of an active volcano, Barren Island, which is the only active volcano in India.
Barren Island, located in the Andaman Sea, is part of the Andaman volcanic arc. This arc is a chain of volcanoes formed by the subduction of the Indian Plate beneath the Burma Plate. The subduction process leads to the melting of the subducting plate, which results in the formation of magma that rises to the surface, creating volcanic activity. Barren Island has erupted multiple times in recent history, with the most recent eruption occurring in 2017. This makes Barren Island a significant geological feature of the Andaman and Nicobar Islands and a point of interest for volcanologists and geographers.
In addition to its geological features, the Andaman and Nicobar Islands have an administrative capital, Port Blair. Port Blair is the largest town in the union territory and serves as the administrative center. It is located on South Andaman Island and is a significant port city, connecting the islands to the mainland of India. Port Blair is an important hub for transportation, commerce, and governance in the Andaman and Nicobar Islands.
The correct answer to the question is "All of the above" because each of the statements provided is accurate. Barren Island is indeed an active volcano, the Andaman and Nicobar Islands are home to India's only active volcano, and Port Blair is the capital of the Andaman and Nicobar Islands. Understanding these facts is crucial for comprehending the geographical and administrative aspects of the Andaman and Nicobar Islands.